///\todo upgrade

//////////////////////////////////////////////////////////////////////////////////
//                                                                              //
//  This file is part of the buola project (https://code.google.com/p/buola/).  //
//                                                                              //
//  Copyright(c) 2007-2012 Xavi Gratal                                          //
//  gratal AT gmail DOT com                                                     //
//                                                                              //
//  Buola is free software: you can redistribute it and/or modify               //
//  it under the terms of the GNU General Public License as published by        //
//  the Free Software Foundation, either version 3 of the License, or           //
//  (at your option) any later version.                                         //
//                                                                              //
//  Buola is distributed in the hope that it will be useful,                    //
//  but WITHOUT ANY WARRANTY; without even the implied warranty of              //
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               //
//  GNU General Public License for more details.                                //
//                                                                              //
//  You should have received a copy of the GNU General Public License           //
//  along with buola.  If not, see <http://www.gnu.org/licenses/>.              //
//                                                                              //
//////////////////////////////////////////////////////////////////////////////////

#ifndef _BUOLA_IO_CRESULT_H_
#define _BUOLA_IO_CRESULT_H_

#include <buola/buola.h>

namespace buola { namespace io {

enum class EResult
{
    NONE=0,
    OK=0,
    ENDOFFILE=(1<<0),
    WOULDBLOCK=(1<<1),
    NOTFOUND=(1<<2)
};

DECLARE_ENUM_CLASS_BITOPS(EResult);
    
class CResult
{
public:
    explicit CResult(size_t pCount,EResult pFlags=EResult::NONE)
        :   mCount(pCount)
        ,   mFlags(pFlags)
    {}
    
public:
    size_t Count() const    {   return mCount;      }
    EResult Flags() const   {   return mFlags;      }
    bool OK() const         {   return mFlags==EResult::OK;  }
    bool All() const        {   return !(mFlags&(EResult::ENDOFFILE|EResult::WOULDBLOCK));    }
    bool EndOfFile() const  {   return mFlags&EResult::ENDOFFILE;   }
    bool WouldBlock() const {   return mFlags&EResult::WOULDBLOCK;  }
    bool Found() const      {   return !(mFlags&EResult::NOTFOUND); }
    
private:
    size_t mCount;
    EResult mFlags;
};

typedef intrusive_ptr<CStream> PStream;

/*namespace io*/ } /*namespace buola*/ }

#endif
